Summoner Unlocks
As a player attempting to get friends into the game, there's one thing I've found - having Ghost for the first 7 levels just seems underwhelming. Previous to the Ghost nerfs, it was an okay summoner spell for new players learning the game. After those nerfs, the summoner is only used on a few champions, and frankly just feels bad on anyone else.
Instead, I suggest swapping it for Flash as a first unlock - Flash is an extremely important spell, as most champions utilize it extremely effectively at all levels. The only argument I can see against it is "Oh, but players need to learn how Ghost works!" - there's a Practice Tool if they want to test new summoner spells to see what they do. There's no reason to nerf their ability to respond to enemy skills (like Jarvan's Cataclysm) to teach them that Ghost isn't the best summoner spell for their champion.